I don't have the link, but in the travel section someone posted this type of stuff I think.
one thing to seriously consider. if you are bushwhacking and making your own way, be aware that old maps are wrong. the earthquakes, landslides etc change the landscape enough to make things difficult. my maps are the old US ones form the 50s I think and I find a lot of things have changed. so dont depend too much on them, you may need to skirt back around a mountain after you run into half of it in a river bed. I like to get an idea with them and gogole earth. although it doesnt have elevation lines on google, you can get a good idea of the 3d situation a little better, and its more recent than many maps.
but there is a road atlas book, its a 2 part (north and south). they have elevations and hiking stuff. i forget teh name, the store that I went to said its out of print and will be available new again this year....???? if anyone has an old copy of the south, id like to buy it though.